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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/99337

99337

ZIP 99337 is in Kennewick, Washington, in Benton County; area code 509; Pacific time. Kennewick has 3 ZIP codes; the others are 99336 and 99338.

Type
Standard
Time zone
America/Los_Angeles
County
Benton
Population
33,287
Coordinates
46.0520, -119.0985
☼ Live from 99337 — Kennewick, WA

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Where 99337 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 99337
  • 🔢 Type 99337 into a pocket calculator and turn it upside down: LEEGG — not quite a word, sorry.
  • ➕ As a number, 99,337 = 7 × 23 × 617. Its digits add up to 31, a total 799 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000010000001001
  • 🏠 Its numerical neighbours: 99336 (Kennewick, WA, 12 mi away) and 99338 (Kennewick, WA, 12 mi away).
  • 🔄 Backwards, 99337 becomes 73399, which is not a ZIP code at all.
  • 👥 7 other ZIP codes are made of exactly the same digits (37939, 39739, 73939, 79339, 93793, 97339, …). The farthest-flung twin is 37939 in Knoxville, TN, 1,940 miles away.
  • 🧭 Farther north than 94% of all ZIP codes, and farther west than 93%.
  • 🎯1,119 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99337 and you would come out at 46.05°S, 60.90°E — 489 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 46m of daylight. Shortest: 8h 38m.
  • 📏 At 165.9 square miles of land, 99337 is bigger than 88% of ZIP codes — room for about 126 Central Parks.
🌙 The sky over 99337 today
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🌋 Shake report
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Source: USGS.

People and housing

Population33,287This ZIP33,287
Households11,390This ZIP11,390
Housing units11,827This ZIP11,827
Median age39.4This ZIP39.4Washington38.3US 38.9
Median household income$98,848This ZIP$98,848Washington$98,141US $80,734
Median home value$395,500This ZIP$395,500Washington$564,600US $332,700
Median gross rent$1,242This ZIP$1,242Washington$1,760US $1,413
Bachelor's degree or higher28.4%This ZIP28.4%
Mean commute22.7 minThis ZIP22.7 min
Population density200.6 / sq miThis ZIP200.6 / sq mi

Business and tax activity

Business establishments436This ZIP436
Employees3,836This ZIP3,836
Annual payroll$179,573,000This ZIP$179,573,000
Tax returns filed14,980This ZIP14,980
Total adjusted gross income$1,262,725,000This ZIP$1,262,725,000

Land area

Land area165.94 sq miThis ZIP165.94 sq mi
Water area15.69 sq miThis ZIP15.69 sq mi

Other place names in 99337

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 99337

ZIPCityDistance
99346 Plymouth, WA 9.9 mi
99363 Wallula, WA 10.2 mi
99336 Kennewick, WA 11.8 mi
99338 Kennewick, WA 11.9 mi
99302 Pasco, WA 12.6 mi
99323 Burbank, WA 14.4 mi
97882 Umatilla, OR 15.7 mi
99352 Richland, WA 16.3 mi
97875 Stanfield, OR 16.5 mi
97838 Hermiston, OR 16.6 mi

Find every ZIP code within 10 miles of 99337 →

Questions about this ZIP code

Where is ZIP code 99337?

99337 is in Kennewick, Washington, in Benton County, part of the Kennewick-Richland, WA metropolitan area. Its published point location is 46.0520, -119.0985.

What county is 99337 in?

99337 lies in Benton County.

What area code is 99337?

Kennewick uses area code 509, from NANPA's telephone records.

What time zone is 99337 in?

99337 uses America/Los_Angeles.

How many people live in 99337?

About 33,287 people live in ZIP code 99337, in 11,390 households, at 200.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 99337?

$98,848 a year, against $98,141 across Washington.

What ZIP codes are near 99337?

The closest are 99346 (9.9 mi), 99363 (10.2 mi), 99336 (11.8 mi), 99338 (11.9 mi) and 99302 (12.6 mi).

Is 99337 a PO Box ZIP code?

99337 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “99337 ZIP Code — Kennewick, Washington (Benton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99337

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